JFrame, Jdialog or Application Window

[pamm]

Hi!

I'm working with Eclipse, and I want to start a new swing application.
I don't know witch to choose...JFrame, Jdialog or Application Window. My guess is Application Window...
Can someone explain me the difference between them? They are all windows... :P


Thanks

Paula

[JosAH]

I can't find any ApplicationWindow class in the JSE core distribution, so I'd say pick a JFrame ...

kind regards,

Jos

[pamm]

Ok! I'm starting with JFrame! :)
Keep it simple!
Thanks!

Paula

I can't find any ApplicationWindow class in the JSE core distribution, so I'd say pick a JFrame ...

kind regards,

Jos

[pamm]

Above the two classes created by Eclipse...
What sould I pick? :)
Paula

JFrame

import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;


public class Testframe extends JFrame {

private JPanel contentPane;

/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Testframe frame = new Testframe();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}

/**
* Create the frame.
*/
public Testframe() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
contentPane.setLayout(new BorderLayout(0, 0));
setContentPane(contentPane);
}

}

Application window

import java.awt.EventQueue;
import javax.swing.JFrame;


public class TestWindow {

private JFrame frame;

/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
TestWindow window = new TestWindow();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}

/**
* Create the application.
*/
public TestWindow() {
initialize();
}

/**
* Initialize the contents of the frame.
*/
private void initialize() {
frame = new JFrame();
frame.setBounds(100, 100, 450, 300);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOS E);
}

}

[Fubarable]

Your questions suggest that you may be Swing tutorial deficient. Please do yourself a favor and read the Swing tutorial regarding top level containers, JFrames, and JPanels to start with. Otherwise you're in for a very bumpy and frustrating ride.

[pamm]

I know the difference between JFrame an JPanel. I know I have much to learn, perhaps I'm "Swing tutorial deficient". I'm going to follow your advice and read a little more about it (I have much to learn), but... since I have these options in Eclipse and I have to start with something... I want to know more about it.
I think they are basically the same (I may be wrong), that's why I asked for your opinion!
If you want to give it it's ok, if you don't, I just have to discover myself why they put this two options when creating a swing class in Eclipse.

Thank you

Paula

Your questions suggest that you may be Swing tutorial deficient. Please do yourself a favor and read the Swing tutorial regarding top level containers, JFrames, and JPanels to start with. Otherwise you're in for a very bumpy and frustrating ride.

[Fubarable]

I know the difference between JFrame an JPanel. I know I have much to learn, perhaps I'm "Swing tutorial deficient". I'm going to follow your advice and read a little more about it (I have much to learn), but... since I have these options in Eclipse and I have to start with something... I want to know more about it.
I think they are basically the same (I may be wrong), that's why I asked for your opinion!

They are not the same, not at all -- and the tutorials will tell you all this, and much better than we can.

Are you using a drag and drop code builder with Eclipse to build your Swing application? If so I strongly advise you not to do this until you know Swing well as they can cause more problems initially then help.

[pamm]

Can you give me a name of a good book or link to a good tutorial.
I can create a frame from scratch, but I don't have much experience.
Some friend told me that's the easy and fastest way to create a swing application (drag and drop), usually I write the code myself without any help (drag and drop).

Thanks

Paula

They are not the same, not at all -- and the tutorials will tell you all this, and much better than we can.

Are you using a drag and drop code builder with Eclipse to build your Swing application? If so I strongly advise you not to do this until you know Swing well as they can cause more problems initially then help.

[Fubarable]

Can you give me a name of a good book or link to a good tutorial.

No problem, check here first: Using Swing Components.

I can create a frame from scratch, but I don't have much experience.
Some friend told me that's the easy and fastest way to create a swing application (drag and drop), usually I write the code myself without any help (drag and drop).

It's the quickest way to get a quick and dirty very simple application together yes, but once you get beyond the most basic and try to modify it, it can get very tricky especially if you're new to Swing. I recommend it for prototyping or general use if you're adept with Swing, but if you're learning Swing, it will increase your struggling and won't help you learn it (these code generators usually produce ugly code).